Extensive testing has shown that at higher temperatures operating
without a GSC backup battery, the GSC needs a small delay after
releasing the I2C SDA/SCL pins before it is ready to handle I2C
requests.
Add a delay to avoid errors such as:
wait_for_sr_state: Arbitration lost sr=93 cr=80 state=2020
i2c_init_transfer: failed for chip 0x20 retry=0
Signed-off-by: Tim Harvey <thar...@gateworks.com>
---
board/gateworks/venice/spl.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/board/gateworks/venice/spl.c b/board/gateworks/venice/spl.c
index 9a22eeef36ba..ec3c394d24d8 100644
--- a/board/gateworks/venice/spl.c
+++ b/board/gateworks/venice/spl.c
@@ -303,6 +303,7 @@ void board_init_f(ulong dummy)
mdelay(10);
}
pinctrl_select_state(bus, "default");
+ mdelay(10);
}
}
/* Wait indefiniately until the GSC probes */
--
2.25.1
